Proof. 
The proof of the lemma follows exactly on the similar lines of [1]} by taking \(T:=\Big (\frac{r}{R}\Big )^\frac{s_1p}{p-1}T_{p-1}(u_-;x_0,R) +\Big (\frac{r}{R}\Big )^\frac{s_2q}{q-1}T_{q-1}(u_-;x_0,R)+ r^\frac{s_1p-s_2q}{p-q}+ r^\frac{\gamma s_1p-N}{\gamma (p-1)} \Vert  f \Vert _{L^\gamma (B_R)}^\frac{1}{p-1}\) , there and using Lemma REF  instead of [1]}. \(\square \)
